What Happened to Husband and Wife Found in Grave on Texas Beach?

Police are searching for a person of interest in the case of a New Hampshire couple whose bodies were found buried on a remote Texas beach. James Butler, 48, and his wife, Michelle, 46, had been reported missing for nearly three weeks when their remains were discovered late last month in a shallow grave on Padre Island, police said. An unidentified person of interest was captured by a surveillance camera at a check point along the Mexican border driving the couple's SUV, police said.